Apparatus for separating solid substances from liquids.



No.800,113.- A PATENTED SEPT. 19, 1905. F.KASSIAN.

APPARATUS FOR SBPARATING SOLID SUBSTANCES FROM LIQUIDS.

' APPLICATION FILED 001'. 10, 1904.

' UNITED STATES P EN O FICE.

v FRANCISCO KASSIAN, OF MEXICO CITY, MEXICO.

APPARATUS FOR SEPARATING SOLID SUBSTANCES FROM LlQUlDS.

Specification of Letters Patent.

Patented Sept. 19, 1905.

Application filed October 10, 1904:. Serial No. 227,933.

. To all whom it may concern:

Be it known that I, FRANcIsco KAssIAN,

sary for the purpose of separating solid constituents to induce fluidsto deposita portion of the solid substances first by allowing them tostand, by suddenly checking the speed of flow, or by altering thedirection of the movement, and afterward to fully purify them by This isthe case, for instance, in

filtration. sugar-juice coming from the separation-pan.

This invention provides an apparatus for this object which produces bothkinds of separation, and thus allows an uninterrupted working, enablingthe filter to be cleaned without substantial interruption of the workingand rendering itunnecessary to change the filtering media.

As'shown in vertical section in the accompanying drawing, the apparatusconsists of a casing in which two or more chambers g h are located,which are preferably arranged, as shown, as cylinders having a uniformaxis. Theouter cylinder g has a tapering bottom provided with'a valve 8for closing it. The vessel it, the lower part of which is also tapering,is closed either at its deepest point or, as shown in the drawing, at apoint somewhat above this by a bottom plate 4, provided with a slide 0or other suitable means of closing. Over this bottom plate a a secondsieve-like one, m, is arranged, on which suitable filteringmaterial-such, for instance, as sand, volcanic pumice-stone, or thelikeis spread. Both vessels are closed above.

. The fluid to be purified or separated passes through a pipe d into thevessel 9, fills it, and rises through the opened valveo into the vessel,it, thus passing through the filter. In consequence of the reversal ofmovement at the lower edge of the vessel It and the enlargement ofsection there existing the liquid allows the heavier impurities to drop,which are carried ofl through the valve 8. The fluid passing into thefilter thus only requires to be freed from the finer impurities.The'purified juice is discharged through an aperture f, preferablyplaced somewhat lower than the.

admission (1.

The cleaning of the filter takes place in the -following way: When theadmission of fluid at dis interrupted and the sludge depositeddischarged through the valve 8 from the bottom chamber 1', steam (oranother suitable pressure medium) is admitted through a pipe p,projecting into the upper part of the vessel g, which steam forcesthe'liquid contained v in the annular space between the two vessels 9and it through the filter. face of the liquid has reached the lower edge6 of'the inner vessel, which may be inspected by means of a spy-hole,inflow is stopped. A pressure-pipe q, provided in the vessel It andconveying steam or other suitable medium. is then opened, which forcesthe liquid standing in and on the filter out of the vessel/t back againinto the vessel g. Counter-pressure may be obviated by means of anairvalve :[or by water being admitted, by means of a spraying or jetpipe 00, into the steamfilled chamber of the vessel g, which watercondenses the steam. In this case the use of the pressure-pipe qmay-also be entirely dispensed with if atmospheric air be given access.to the vessel It by means of a valve w. When the vessel 72. is emptied,the bottom slide 0 is closed, and water introduced through a jet pipepasses through the filtering layer, thereby cleaning it, and, togetherwith the impurities washed out, quits the chamber 0 by means of a nozzlen and pipe 0, which have been opened in the meantime.

tion of steam, (through the pipe q.) When the washing is completed, asupplementary cleaning and drying, by means of steam, may take place bythe help of the pipe q. The pipe 0 is then closed, the valve '0 againopened, and after the pipe d has been opened the separating operation isrecommenced.

The filtering substance is introd uced through a manhole-like aperture71 in the cover of the vessel It and removed through a similar aperture6, arranged in the lower part, access to this being obtained through asuitable nozzle in.

I declare that what I claim is 1. An apparatus of the class describedinvo'l'ving a vessel separated into two chambers communicating with eachother below their upper ends, one chamber being adapted to be Before thesur- If necessary, this cleaning may be assisted by the introducwardlypasses, said medium serving to force the liquid upwardly through thefilter, and a second pressure-pipe for conducting a pressure medium intothe filter-chamber for forcing the liquid downwardly through the filterand out the filter-chamber.

2. An apparatus of the class described involving a vessel separated intotwo chambers communicating with each other below their upper ends, onechamber being adapted to be downwardly traversed by liquid, a filter inthe'other chamber, through which said liquid is adapted to flowupwardly, pressure-pipe leading into that chamber through which theliquid downwardly passesand serving to force the liquid upwardlythrough'the filter, anda spraying water-pipe in that chamber which isdownwardly traversed by the'liquid.

3. An apparatus of the class described involving a vessel divided intotwo chambers communicating below their upper edges, one chamber beingadapted to be downwardly traversed by liquid, a filter in the otherchamber, through which the liquid is adapted to pass, a water-pipe inthe filter-chamber, above the filter, a valve for closing thefilter-chamber below the filter, and a water-pipe connected with thefilter-chamber above the valve and leading out of the vessel.

t. An apparatus of the class described involving a vessel provided withtwo communicating chambers, one constituting a filterchamber and beingprovided with a filter, through which liquid is adapted to pass in onedirection when flowing from the other chamber in an opposite direction,means for supplying water against the filter in a direction opposite tothe flow of the liquid through said filter, a valve for thefilter-chamber, arranged at the side of the filter opposite that intowhich water is supplied to the filter-chamber, and'an outlet-pipeconnected with the filterchamber between the valve and the filter andextending outward through the vessel.

In testimony whereof I have hereunto set my handin presence of thesubscribing witnesses.

FRANCISCO KASSIAN. Witnesses:

A. W. GoBRE'oH'r, JAMES RUssELL PAnsoNs, .112, L. HARTMANN.

